Engine-starter.



@EST AWC-MELE CGP" T. C. CIIIIISIIE 6L- E. A. EDIVION.

ENGINE STARTER.

/IPPLIc/ITIQN FILED om. 23.. m15.

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BEST AVMLABL" CG?" T. C. CHHSUE @l E. A. EMUN.

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APEUCATIQN FILED 00h23. i915. lsS-y l5@ l zmmed Jan. 8y 1918.

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ENGINE-STARTER.

Specicaton of Letters Patent.

Patented Jani. 8,1918.

Application filed October 23, 1915. Serial No. 57,690.

To all whom z't may concern: y p

Be it known that we, TnonAs C. CHRIS- TIE and ELMni-i A. EDMON.-citizens of the United States, residing at Lebanon. in the county ofWarren and State of Ohio. haye invented new and useful Improvements inEngine-Starters, of which the 'following is a specification.v p

This invention relates to engine starters of the mechanical type thelobject in view being to provide a' starter applicable to the engines ofautomobiles and similar \fehicles, the starting mechanism beingcontrolled by the driver' of the machinel while in his seat and being;of such a nature that it is impossible for the operator to be injured bythe starter in the 'event lof the engine back firing or starting to turnin the wrong direction.

A further object of the'invention is to provide novelmeans `whe-'eby thestarting arm which turns the engine` shaft is automatically trippedatboth'liinits of its move-.j

ment so as to disenga ge the nisin from the engine shaft.

One ofthe principal features of this invention resides in the particulareonstrnostarting mecha- 'tion of the starting arm whereby increasedthrow and leverage is obtained for etlecting a correspondingly increasedthrow or turning movement of the engine shaft. I

With-the above and other objects in view, the invention consists in thenovel construction, combination and arrangement of parts, as hereindescribed, illustrated. and claimed. In the accompanying drawings Figurel is a front elevation partly in section showing the starterof thisinvei'tion applied to the engine of anantoniobiie.

Fig. 2 is a plan View thereofpartly in sec tion also shown applied. v

Fig. 3 is ,a vertical longitudinal. section showing the operating`means. l

Fig. 4 is an enlarged front elevation showing the operating arm and itsextension in'V their initial positions.

Fig. 5 is a similar view showing the final lposition of sadparts.

Fig. 6 is a fragmentary yrear elevation of a` portion of the mainstarting arm, the dog and spring. A. l

Fig. 7 is a detail perspective viewv of the pirated arm extension.

. Fig. S is a fragmentary section similar to' Fig. Ll but looking towardthe opposite side of the main starting arm.

Referring tos the drawings, 1 designates a ratchet wheel which wheninvitsl workingA position has a fixed relation to the Ycrank shaft 'ofthe engine designated generally at A. ln the preferred embodiment ofthis invention the ratchet wheel l is carried by or foi-ined integrallywith a belt pulley7 2 which is substitutei'l for the belt pulley nowusually fastened on 'the crank shaft of the engine and around which thebelt passes for driv` ing the fan used in maintaining the engine in acool condition, said fan being arranged betweeirthe front end of theengine and the radiator.- Extending forwardly from the ratchet wheel lisa stub shaft 3 on'which is fastened the clutch member 4 which isadapleil to be engaged by a coperating clutch ineinberon the inner endof the shaft p of the crank by means of which the engine is ordinarilystarted.

5 designatesl a collar which loosely encirclesthe clutchmeinber 4 and isprovided with an outwardly extending ina-in starting arm ti havingpivotally connected to theeX- ti'eniity thereof at 7 an extension arm 8preferably composed of two Side members which straddle the extremity ofthe main arm 6 and which have journaled between the outer extremitiesthereof a cha-in pulley 9 the purpose of which' will presently appear. Astop in the form of a pin 8 onv the extension arm .8 contacts with themain arm 6 and serves to limit the pivotal movement of said extensionarni lin an inward direction so that an leveragev or pull on the arm f3is insured.

' A. dog-10 is piif'otally mounted at 11 on the main arm 6 and is'provided with asprojecting tooth l2 to cooperate' with the teeth of theratchet wheel l for the purpose lof turning said ratchet wheel in adirection `whiel`i will turn the crank shaft of the eny gine to startthe latter. The dog 10 rovided with two tripping` faces 13cm 14 whichentend or roiect beyond the opposite sides or edges of in Contact withfixed stop-surfaces 15 which are shown as formed by the side portions ofthe pan 16 which extends under the engine. ln the Working stroke ofLtliegirm 6, the tripvthe arm 6 so as to comer when the arm Avait/@LeCOF4 i the dog is forced into engagement with the its working stroke. i

The tripping faces of the dog are disposed ratchet wheel as soon as thearm 6 starts on at such angles that the dog is released by substantiallyvertical pressure against the fixed stop surfaces at both ends of thethrow of the main starting arm, the dog being 13 in one of its trippingfaces to receive one of said stopping surfaces and prevent furtherpivotal movement of the dog when the main arm has reached the full limitof its working stroke, the dog serving to limit said working stroke ofthe main starting arm.

, being fastened to Fall `The mechanism hereinabove described ismanually operatief1 means of a handle 18 arranged in rear `the dash 19,said handle the rear extremity of a pull rod Q0 the latter passingthrough the dash board and being normally held in its initiai positionby means of a cushioning spring 21 `which is interposed between a plate22 on the dash and a shoulder 23 on the pull rod. Connected to an eye 24at the forward end of the push rod .2O isfa chain 25 which passes arounda guide pulley 26- joninaied 1n a bracket 27 fastened to the frame of anautomobile at one side of the engine asslioivn. The chain 25 then passes.errand the pulley 9 of the extension-arm,

than tack to the bracketf27 tojwhich', it iaetezied at 28. 1n arder toprovide for the quickreturn movement of the starting arm 6, I employ acaiicd contractile spring 29 one endof which is secured at 30 to theframe. To theother extremity of said spring is fastened Ornefe'iid, of ashort chain 31, the opposite end. of'k said chain being fastened to agrooved pulley face 32 on the collar' abovedescribed. l' n1 operation,the driver grasps the handle 153 and pulls the'same rearwardlycausingthe chain to swing the main arm 6 and the extension arm 8 infhadirection which will canse the dog 10 to engage the ratchet` wheel l andimpart a. partial turning movement in the proper direction to the crankshaft of thelenginc. diffused, the spring is soon as the handle 18 isre- 29 restores the 'starting to' its initial position. Tbisfoperationha repeated as frequently las necessary to start the engine. Atbothlimits is "tripped ont of engagement with the'- ratchet wheel 1 thuspreventing injury to the hand' and arm of the operator as well asEquipping an automobile engine with thel starting mechanism hereinabovedescribed willnot interfere with the freeV use of the ordinary handstarting crank, so that both means of starting the engine may beemployed'as may be found necessary or advisable under existingconditions.

Having'thus described our invention, we claim z- 4 1. The combinationwith the crank shaft of an engine, of a ratchet vwheel having a fixedrelation to said shaft, anormally loose collar on said shaft at one sideof the ratchet wheel, a main starting arm extending from said collar andhaving a fixedy relation thereto, a dog having a pivotalmounting on andcarried by said arm and having two tripping faces projecting ,laterallyon opposite sides of said arm, means for causing said dog to engage theratchet wheel as soon as the arm is moved from its y.initial position,fixed stop surfacesv with which said tripping faces contact at thelimits of `movement of said arm, an extension arm pivotally attached tothe main starting arm and having a pulley at its free end, means forretractin thestarting arm, a manually operable p 4 chain' controlledfrom the drivers seat and passing freely around said pulley and havingvene 'extremity thereof attached to 'a on said extension`fixedlvrelation to said shaft, a collar havmg' a normally looserelation to said shaft and ratchet wheel, a main starting arm extendingfromy said collar and fixed in relation tothe latter, a dog having apivotal mounting onand' carried by said arm and having frontend reartripping faces projecting beyond opposite faces of said arm, means forcausing said dog to engage the ratchet wheel as soon as the arm is movedfrom its initial position, xed stop surfaces with which said trippingfaces contact at the limits of movement cf the dog, an extension armpivotally attached to the main startmg arm,-`a manually operable pullchain controlled from the drivers seat for impartring a working stroketo said starting arm, and means for retracting said starting arm, saidtripping :yfaces of the dog being disposed at such angles that the dogis released ing stroke, the dog serving to limit said lby substantiallyvertical, pressure against working stroke of the main starting arm. thefixed stop surfaces at both ends of the In testimony whereof We aiX oursignathrow of the main starting `2li-In, the dog tures in presence oftwo Witnesses.

being formed with a locking notch 13 in THOMAS C. CHRISTIE. one ot' itstripping faces to receive` one of ELMER A.. EDMON. said stop surfacesand prevent further W itnesses:-

pivotal movement of the dog when the main i GEO. L. SCHENCK,

erm has reached the fulllimit of its w'ork- M. E. GUSTIN.

